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Cytotoxicity of the modified dendrimer conjugates in RES cells. RAW264.7 cells were incubated with 100 nM dendrimer conjugates for (a) 2 h, (b) 24 h, and (c) 48 h. Following incubation, cytotoxicity of the dendrimers was assessed using the XTT assay. NT signifies no treatment control. None of the dendrimer conjugates were cytotoxic at the time points evaluated.
